Calculate date - 45 days

DW 7.2
In Workflow, I am trying to calculate a date based on a date field - 45 days.  Does anyone have a solution.  I thought it was as simple as GV_EndDate - 45.  But nope.

Any help would be greatly appreciated.
 

Hi Michael,
You'll need to use the DateAdd function.  I have this page bookmarked - it'll tell you about that and all the other functions: VB Scripts

Thank you so much for the help.  This worked perfectly and easily.